Author: admin

  • Trees may play role in electrifying the atmosphere . study suggests

    ScienceDaily: Earth Science News


    Trees may play role in electrifying the atmosphere, study suggests

    Posted: 21 Mar 2012 07:55 AM PDT

    Plants have long been known as the lungs of the Earth, but a new finding has found they may also play a role in electrifying the atmosphere. Scientists have long-suspected an association between trees and electricity, but researchers in Australia think they may have finally discovered the link. The scientists ran experiments in six locations around Brisbane. They found the positive and negative ion concentrations in the air were twice as high in heavily wooded areas than in open grassy areas, such as parks.
    You are subscribed to email updates from ScienceDaily: Earth Science News
    To stop receiving these emails, you may unsubscribe now.
    Email delivery powered by Google
    Google Inc., 20 West Kinzie, Chicago IL USA 60610
  • Robotic fueling of unmanned vessels

    ScienceDaily: Severe Weather News


    Energy requirements make Antarctic fur seal pups vulnerable to climate change

    Posted: 21 Mar 2012 07:55 AM PDT

    A new study has found that changing weather conditions can impact the metabolic rates of fur seal pups. Climate models predict windier and wetter conditions in Antarctica in the coming years, and that could cause young seals to assign more energy to thermoregulation, leaving less available for growth and development.

    Robotic fueling of unmanned surface vessels tested

    Posted: 20 Mar 2012 08:54 AM PDT

    Engineers have successfully demonstrate the Rapid Autonomous Fuel Transfer system, designed for the autonomous transfer of fuel to unmanned surface vehicles at sea.
    You are subscribed to email updates from ScienceDaily: Severe Weather News
    To stop receiving these emails, you may unsubscribe now.
    Email delivery powered by Google
    Google Inc., 20 West Kinzie, Chicago IL USA 60610
  • Science Daily Oceanography News

    ScienceDaily: Oceanography News


    Venice hasn’t stopped sinking after all

    Posted: 21 Mar 2012 02:22 PM PDT

    The water flowing through Venice’s famous canals laps at buildings a little higher every year — and not only because of a rising sea level. Although previous studies had found that Venice has stabilized, new measurements indicate that the historic city continues to slowly sink, and even to tilt slightly to the east.

    Warming Antarctic brings changes to penguin breeding cycles

    Posted: 21 Mar 2012 09:37 AM PDT

    Three penguin species that share the Western Antarctic Peninsula for breeding grounds have been affected in different ways by the higher temperatures brought on by global warming, according to new research.

    Chemical pollution in Europe’s seas: The monitoring must catch up with the science, experts say

    Posted: 21 Mar 2012 07:53 AM PDT

    According to a recent poll of more than 10,000 citizens from 10 European countries, pollution is the primary concern of the public at large among all issues that threaten the marine environment. A new position paper shows that such public concern is not misplaced and is supported by scientific evidence.

    Geological ‘pulse’ causes cycle of extinctions every 60 million years, scientists report

    Posted: 22 Feb 2012 10:29 AM PST

    A mysterious cycle of booms and busts in marine biodiversity over the past 500 million years could be tied to a periodic uplifting of the world’s continents, scientists report.
    You are subscribed to email updates from ScienceDaily: Oceanography News
    To stop receiving these emails, you may unsubscribe now.
    Email delivery powered by Google
    Google Inc., 20 West Kinzie, Chicago IL USA 60610
    Reply
    Forward
  • Climate Change News NY TIMES

    My Alerts

    ADVERTISEMENT

    Alert Name: CLIMATE CHANGE NEWS
    March 22, 2012 Compiled: 1:08 AM

    By JAMES KANTER (NYT)

    A European emissions offset plan awards surplus carbon permits to some carriers, based on their historic emissions, and the airlines might be able to sell those permits at a profit.

    By ERICA GIES (NYT)

    Opponents say an Arizona mine would threaten the area’s ecosystem, while the company that wants to operate it said it would ensure that pollutants do not leach into the ground.

    About This E-mail

    You received this e-mail because you signed up for NYTimes.com’s My Alerts tool. As a member of the TRUSTe privacy program, we are committed to protecting your privacy.

    Reply
    Click here to Reply or Forward
  • Solar panels help power revamped King’s Cross station

    Solar panels help power revamped King’s Cross station

    SunDog Energy set to unveil innovative solar array, high above revamped King’s Cross station

    • guardian.co.uk, Wednesday 21 March 2012 16.20 GMT
    • Article history
    • Solar panel on the roof of King's Cross Train Shed

      Solar cells on the roof of the revamped King’s Cross Station. Photograph: avail/Andrea Vail on Flickr under a Creative Commons license

      An ambitious £1.3m project to fit a 240kW solar glazing system to the roof of King’s Cross station is nearing completion, BusinessGreen has learned.

      While the station’s new roof captured imaginations when it opened last week, the process of installing solar cells along two new barrel-vaulted glass roofs soaring high above the platforms and concourses is in many ways just as impressive.

      The solar PV cells are integrated into 1,392 glass laminate units that form part of the 2,300 square metre glass roofing structure.

      Meanwhile, progress installing the system has had to be synchronised with a huge rolling scaffold that slowly moves along the concourse as commuters pass by.

      A spokesman for Sundog Energy, which is providing the solar system, told BusinessGreen the installation was further slowed by stringent safety regulations designed to address the risks associated with working over a live line.

      The safety rules are so tight that items such as pens have to go up in a dedicated lift connected to the installation area in order to prevent them falling from a height above the station. “If you forget something, it’s an hour to go back and get it,” the spokesman said.

      However, despite the installation challenges, the system is due to be completed “by the summer”, when it should start to produce around 175,000 kWh of electricity per year, saving over 100 tonnes of CO2 annually.

      The system forms part of a major overhaul of King’s Cross station, including the restoration of the original 1851 facade of the building, the renovation of the ticket hall and the main train shed roof, and the creation of a new public square in front of the station.

      However, King’s Cross is still lagging behind Blackfriars when it comes to solar power. Blackfriars, which reopened earlier this year after extensive modernisation, boasts a 4,400-panel array running along the roof of a railway bridge spanning the Thames. The Blackfriars array is expected to generate around 900,000kWh of electricity a year, about half of the station’s demand, as well as reduce annual CO2 emissions by over 500 tonnes a year.

      Both projects are part of Network Rail’s wide-ranging green building programme, which aims to support the company’s goal of reducing carbon emissions 25 per cent per passenger kilometre by the end of the decade.

  • Murray concerns expressed in Canberra

    Murray concerns expressed in Canberra

    Updated: 14:15, Wednesday March 21, 2012

    Murray concerns expressed in Canberra

    A fisherman and a pistachio grower from South Australia have come to Canberra to tell the prime minister of their concerns for the future of the Murray-Darling Basin.

    Fourth-generation fisherman Henry Jones barbecued mulloway, caught from the Murray River mouth, on the front lawns of Parliament House on Wednesday.

    Later he listed several varieties of fish that were now extinct because of the river’s poor health.

    Behind him stood several politicians, including Prime Minister Julia Gillard, Opposition Leader Tony Abbott, independent senator Nick Xenophon and Water Minister Tony Burke.

    Mr Jones disputed the usefulness of a draft plan for the basin.

    He said the measures in the plan would not be enough to flush out the two million tonnes of salt that flowed down the basin each year, 70 per cent of which was from interstate.

    ‘It’s Australia’s responsibility to get rid of that and put it out the mouth,’ he told reporters.

    Pistachio grower David Peake, from Swan Reach, said he had not harvested a single pistachio nut during four years of drought, but had just had a record crop.

    He was worried about the next drought.

    After declaring the Murray Darling Basin Authority wasn’t listening to the concerns of South Australians, he turned to Ms Gillard and said: ‘Prime minister, I’m sure that some of your government departments aren’t listening either.’

    Ms Gillard said the government was determined to work with South Australians to ensure the good health of the river.

    ‘I know what it is like to live in Adelaide during days of dreadful drought,’ she said.

    ‘I know what it is like to worry about the health of the river Murray, to worry about its mouth being closed, to worry about salinity.’

    Australian Greens leader Bob Brown repeated his party’s line that a minimum 4000 gigalitres of water was needed to restore the basin to good health.

    A 20-week consultation process on the authority’s draft plan for management of the basin ends in mid-April.

    Mr Burke will then take a final draft plan to federal parliament.

    ‘This is an important input into that,’ he said of views put forward by Mr Jones, Mr Peake and Australian Conservation Foundation CEO Don Henry on Wednesday.